PSYA01H3 Chapter Notes - Chapter 4: Gustav Fechner, Absolute Threshold, Neural Adaptation
Document Summary
Sensation the process of detecting external events by sense organs and turning those stimuli into neural signals (an sound is simply a noise) Perception involves attending to, organising, and interpreting stimuli that we sense. Includes recognizing the sounds as human voice and understanding certain colours, shapes, and other motion together make up the image of a human being (interpreting the sounds and understanding where they came from) Transduction when specialized receptors transform the physical energy of the outside world into neural impulses. Stimulus sensory receptors neural impulses perception. Light, sound, smell eyes, ears, nose (transduction) nerves visual, auditor, olfactory. Doctrine of specific nerve energies the idea that different senses are separated in the brain. Sensory adaptation the reduction of activity in the receptors with repeated exposure to stimulus. Ex: the sound of traffic will become less annoying overtime. Benefits: allows to adjust to our surroundings and shift out focus to other events that may be important.
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